+++ /dev/null
-/*-
- * ========================LICENSE_START=================================
- * O-RAN-SC
- * %%
- * Copyright (C) 2020 Nordix Foundation
- * %%
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- * ========================LICENSE_END===================================
- */
-
-package org.oransc.policyagent.tasks;
-
-import java.util.Collection;
-
-import org.oransc.policyagent.clients.A1Client;
-import org.oransc.policyagent.clients.A1ClientFactory;
-import org.oransc.policyagent.repository.Lock.LockType;
-import org.oransc.policyagent.repository.Policies;
-import org.oransc.policyagent.repository.PolicyTypes;
-import org.oransc.policyagent.repository.Ric;
-import org.oransc.policyagent.repository.Ric.RicState;
-import org.oransc.policyagent.repository.Rics;
-import org.oransc.policyagent.repository.Services;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.scheduling.annotation.EnableScheduling;
-import org.springframework.scheduling.annotation.Scheduled;
-import org.springframework.stereotype.Component;
-
-import reactor.core.publisher.Flux;
-import reactor.core.publisher.Mono;
-
-/**
- * Regularly checks the existing rics towards the local repository to keep it
- * consistent.
- */
-@Component
-@EnableScheduling
-public class RepositorySupervision {
- private static final Logger logger = LoggerFactory.getLogger(RepositorySupervision.class);
-
- private final Rics rics;
- private final Policies policies;
- private final PolicyTypes policyTypes;
- private final A1ClientFactory a1ClientFactory;
- private final Services services;
-
- @Autowired
- public RepositorySupervision(Rics rics, Policies policies, A1ClientFactory a1ClientFactory, PolicyTypes policyTypes,
- Services services) {
- this.rics = rics;
- this.policies = policies;
- this.a1ClientFactory = a1ClientFactory;
- this.policyTypes = policyTypes;
- this.services = services;
- }
-
- /**
- * Regularly contacts all Rics to check if they are alive and synchronized.
- */
- @Scheduled(fixedRate = 1000 * 60)
- public void checkAllRics() {
- logger.debug("Checking Rics starting");
- createTask().subscribe(this::onRicChecked, null, this::onComplete);
- }
-
- private Flux<RicData> createTask() {
- synchronized (this.rics) {
- return Flux.fromIterable(rics.getRics()) //
- .flatMap(this::createRicData) //
- .flatMap(this::checkOneRic) //
- .onErrorResume(throwable -> Mono.empty());
- }
- }
-
- private Mono<RicData> checkOneRic(RicData ricData) {
- return checkRicState(ricData) //
- .flatMap(x -> ricData.ric.getLock().lock(LockType.EXCLUSIVE)) //
- .flatMap(x -> checkRicPolicies(ricData)) //
- .flatMap(x -> ricData.ric.getLock().unlock()) //
- .doOnError(throwable -> ricData.ric.getLock().unlockBlocking()) //
- .flatMap(x -> checkRicPolicyTypes(ricData)); //
- }
-
- private static class RicData {
- RicData(Ric ric, A1Client a1Client) {
- this.ric = ric;
- this.a1Client = a1Client;
- }
-
- final Ric ric;
- final A1Client a1Client;
- }
-
- private Mono<RicData> createRicData(Ric ric) {
- return Mono.just(ric) //
- .flatMap(aRic -> this.a1ClientFactory.createA1Client(ric)) //
- .flatMap(a1Client -> Mono.just(new RicData(ric, a1Client)));
- }
-
- private Mono<RicData> checkRicState(RicData ric) {
- if (ric.ric.getState() == RicState.UNDEFINED) {
- return startSynchronization(ric) //
- .onErrorResume(t -> Mono.empty());
- } else if (ric.ric.getState() == RicState.SYNCHRONIZING) {
- return Mono.empty();
- } else {
- return Mono.just(ric);
- }
- }
-
- private Mono<RicData> checkRicPolicies(RicData ric) {
- return ric.a1Client.getPolicyIdentities() //
- .flatMap(ricP -> validateInstances(ricP, ric));
- }
-
- private Mono<RicData> validateInstances(Collection<String> ricPolicies, RicData ric) {
- synchronized (this.policies) {
- if (ricPolicies.size() != policies.getForRic(ric.ric.name()).size()) {
- return startSynchronization(ric);
- }
-
- for (String policyId : ricPolicies) {
- if (!policies.containsPolicy(policyId)) {
- return startSynchronization(ric);
- }
- }
- return Mono.just(ric);
- }
- }
-
- private Mono<RicData> checkRicPolicyTypes(RicData ric) {
- return ric.a1Client.getPolicyTypeIdentities() //
- .flatMap(ricTypes -> validateTypes(ricTypes, ric));
- }
-
- private Mono<RicData> validateTypes(Collection<String> ricTypes, RicData ric) {
- if (ricTypes.size() != ric.ric.getSupportedPolicyTypes().size()) {
- return startSynchronization(ric);
- }
- for (String typeName : ricTypes) {
- if (!ric.ric.isSupportingType(typeName)) {
- return startSynchronization(ric);
- }
- }
- return Mono.just(ric);
- }
-
- private Mono<RicData> startSynchronization(RicData ric) {
- RicSynchronizationTask synchronizationTask = createSynchronizationTask();
- synchronizationTask.run(ric.ric);
- return Mono.error(new Exception("Syncronization started"));
- }
-
- @SuppressWarnings("squid:S2629") // Invoke method(s) only conditionally
- private void onRicChecked(RicData ric) {
- logger.debug("Ric: {} checked", ric.ric.name());
- }
-
- private void onComplete() {
- logger.debug("Checking Rics completed");
- }
-
- RicSynchronizationTask createSynchronizationTask() {
- return new RicSynchronizationTask(a1ClientFactory, policyTypes, policies, services);
- }
-}
Code Review / nonrtric.git / blobdiff